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Authorization, Copyright and legal status

The author reserves the right to make changes to his products at any time to improve reliability or manufacturability. The author does not assume any liability arising from the use of any device or circuit described herein.

EN 50020 Protection Type Intrinsic Safety (i) (Exi):

All methods of protection attempt to contain an explosion to the inside of the housing and to prevent penetration of an ignitable gaseous mixture. The method of Intrinsic Safety is based on a different approach. It limits the electrical energy to such an extent, that elevated temperatures, sparcs or arcs are incapable of generating the energy needed to ignite an explosive atmosphere. Due to the limitation of electrical energy, these circuits are especially suited to application in the field of measuring, control and instrumentation. The method of intrinsic safety has some significant advantages over other protection methods, e.g. maintenance and wiring of live circuits. These systems are easy to handle and cost effective due to inexpensive intrinsically safe components.

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Unauthorized reproduction or copy of the applications or the circuits at one´s own risk.

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